Siemens 7MF0330 - Page 31

Lay the line in such a way that condensation pockets do not form. If required, you need to
install a condensation container below the negative pressure line of the pressure transmitter.
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K
2
K
8
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Measurement assembly on a closed container (no or little
condensate separation)
Formula:
Lower range value: Δp
MA
= ρ · g · h
U
Upper range value: Δp
ME
= ρ · g · h
O
h
U
Lower filling level Δp
MA
Lower range value
h
O
Upper filling level Δp
ME
Upper range value
p Pressure ρ Density of the measured medium in the
container
g Acceleration due to gravity
When taking measurements in a closed container with strong condensate formation, you must
fill the negative pressure line (mostly with the condensate of the measured medium) and install
a condensate pot. Lock the device using the dual pneumatic block 7MF9017-..A.
Installing/mounting
4.3 Installation (level)
SITRANS P320/P420 with 4 to 20 mA/HART
Compact Operating Instructions, 09/2018, A5E38874562-AB 31